Android Open Source - SnowLand Animation

From Project

Back to project page SnowLand.

License

The source code is released under:

GNU General Public License

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Java Source Code

package com.walrus.game;
//from w w w . j  av a  2s  . com
import java.util.ArrayList;

import com.walrus.framework.Image;


public class Animation {

  private ArrayList frames;
  private int currentFrame;
  private long animTime;
  private long totalDuration;

  public Animation() {
    frames = new ArrayList();
    totalDuration = 0;

    synchronized (this) {
      animTime = 0;
      currentFrame = 0;
    }
  }

  public synchronized void addFrame(Image image, long duration) {
    totalDuration += duration;
    frames.add(new AnimFrame(image, totalDuration));
  }

  public synchronized void update(long elapsedTime) {
    if (frames.size() > 1) {
      animTime += elapsedTime;
      if (animTime >= totalDuration) {
        animTime = animTime % totalDuration;
        currentFrame = 0;

      }

      while (animTime > getFrame(currentFrame).endTime) {
        currentFrame++;

      }
    }
  }

  public synchronized Image getImage() {
    if (frames.size() == 0) {
      return null;
    } else {
      return getFrame(currentFrame).image;
    }
  }

  private AnimFrame getFrame(int i) {
    return (AnimFrame) frames.get(i);
  }

  private class AnimFrame {

    Image image;
    long endTime;

    public AnimFrame(Image image, long endTime) {
      this.image = image;
      this.endTime = endTime;
    }
  }
}

Java Source Code List